Welcome to HVAC-Talk.com, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional! Here you can join over 150,000 HVAC Professionals & enthusiasts from around the world discussing all things related to HVAC/R. You are currently viewing as a NON-REGISTERED guest which gives you limited access to view discussions

To gain full access to our forums you must register; for a free account. As a registered Guest you will be able to:

Participate in over 40 different forums and search/browse from nearly 3 million posts.

Pilot Flame is not what it should be

Hello folks,

Have a gas pilot question on a heat and glow fireplace. It's a 8000TDR Nat gas log set. The system has a powerpile and a thermocouple. The pilot flame impinges on the power pile but falls short of the thermocouple. The set looses the pilot flame irregularly. The pilot flame is weaker than it should be. I can't adjust it any higher. Gas pressure is 5.38"in. Going back to look at the pilot assembly. The pilot gas tube is 1/8" od, so I am looking for an obstruction.

Is there an orifice or restrictor plate on the pilot assembly or gas valve connections of the tube?

This is a robertshaw 710 LC gas valve. The pilot set-up, except for the bracket is also common.

The inside of the fireplace is cold cold cold, so makes me wonder if there is condensate in the tube.